Adding a facesContext in a Dialog

[augusto colombelli]

Hello everybody,

I am trying add one facesContext in my Dialog. When I press my button first time, It works fine, but when I update the page and press again the button, I have this error message:

type Exception report

message

description The server encountered an internal error that prevented it from fulfilling this request.
[code=java]
exception

javax.servlet.ServletException
	javax.faces.webapp.FacesServlet.service(FacesServlet.java:606)
	org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)

root cause

java.lang.NullPointerException
	com.sun.faces.application.view.StateManagementStrategyImpl$4.visit(StateManagementStrategyImpl.java:340)
	com.sun.faces.component.visit.FullVisitContext.invokeVisitCallback(FullVisitContext.java:151)
	org.primefaces.extensions.component.base.AbstractDynamicData.visitTree(AbstractDynamicData.java:331)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIForm.visitTree(UIForm.java:344)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIForm.visitTree(UIForm.java:344)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIForm.visitTree(UIForm.java:335)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	com.sun.faces.application.view.StateManagementStrategyImpl.restoreView(StateManagementStrategyImpl.java:335)
	com.sun.faces.application.StateManagerImpl.restoreView(StateManagerImpl.java:188)
	com.sun.faces.application.view.ViewHandlingStrategy.restoreView(ViewHandlingStrategy.java:123)
	com.sun.faces.application.view.FaceletViewHandlingStrategy.restoreView(FaceletViewHandlingStrategy.java:452)
	com.sun.faces.application.view.MultiViewHandler.restoreView(MultiViewHandler.java:148)
	javax.faces.application.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:303)
	com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:192)
	com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116)
	com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
	org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.34 logs.

I am adding dynamic components, look it:

     //create  dialog
      Dialog dialog = new Dialog();
      dialog.setId(WebMetodos.generateIdComponent(dialog, "dialog"));
      dialog.setWidgetVar("dialog");
      dialog.setAppendToBody(true);
      dialog.setModal(true);

     // create button
      CommandButton btnOpen = new CommandButton();
      btnOpen.setId(WebMetodos.generateIdComponent(btnOpen, "btnOpen"));
      btnOpen.setValue("Abrir");
      //btnOpen.setAjax(false);
      btnOpen.setOnclick("dialog.show();");
      
      FacesContext facesContext = FacesContext.getCurrentInstance();
      FaceletContext faceletContext = (FaceletContext) facesContext.getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY);
      faceletContext.includeFacelet(dialog, "/pages/fil/filter.xhtml");
     
      panelDiv.getFacets().put("header", btnOpen);

      form.getChildren().add(dialog);
      form.getChildren().add(panelDiv);

Somebody have one example?

[Tim Holloway]

Welcome to the JavaRanch, Augusto!

I have kept silent these past few days because I have no solution to give. All I can say is that as a general rule I don't recommend manipulating the JSF component tree in Java code, which is why I don't have a solution. Except in very, very rare cases, I do stuff like this solely in the xhtml View Definition.